Iodine deficiency leads to low thyroxine levels, causing the thyroid gland to enlarge (goiter).
Related Questions:
- Differentiate between the following: Cerebrum and cerebellum Sensory and motor neuron Voluntary and involuntary action Nerve impulse and hormonal transmission Short-sightedness and long-sightedness Rods and cones Endocrine glands and exocrine glands Negative and positive feedback mechanisms
- Why do plants have a very slow response to stimuli?
- Name the parts of the human brain.
- Name two functions of the cerebellum.
- How is the brain protected?
- Name the components of a reflex arc.
- Name the endocrine glands.
- What is negative feedback?
- Is it good that impulses travel in only one direction? Why?
- Give the proper biological names for each of these parts of the eye: (a) Light-sensitive layer (b) Controls the amount of light entering the eye (c) Delicate, transparent layer at the front of the eye (d) Tough, white, outer layer of the eye (e) Jelly-like substance that keeps the eye in shape (f) Carries nerve impulses to the brain (g) Black middle layer
- Why do you feel dizzy when you stop suddenly after rotating your head fast?
- How is the spinal cord protected?
- Explain osmotic adjustment in plants.vc
- Write the role of skin, lungs, liver, and kidney in maintaining homeostasis.
- Describe the human urinary system.
- Describe the structure of a nephron.
- Explain the process of urine formation in humans.
- Discuss the disorders of the human excretory system.
- Write any two similarities between a dialysis machine and a real kidney.
- Name the structures in the urinary system of man that is associated with each of these: